Deep fryer



FIG. 1 is a front, top, and right side perspective view of a deep fryer showing our new design;

FIG. 2 is a rear and top perspective view thereof;

FIG. 3 is a left side elevatioanl view thereof, the right side being a mirror image thereof; and

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a deep fryer, as shown and described. 